What is the main reason for boundaries becoming blurred among art types?

Many media, processes, and purposes coming together

The governing concept is hybridity or cross-disciplinary practice. Art types are useful for study, but actual artworks often combine media, techniques, purposes, and modes of communication. An installation may include sculpture, sound, light, video, performance, and text; a textile work may combine craft, design, cultural symbolism, and fashion; a digital project may involve image, animation, music, and interaction. Option A is correct because such combinations make strict boundaries overlap. Option B wrongly claims that art has ended, option C is not necessary because many mixed works rely on viewers, and option D would make classification clearer rather than blur it. The correct reasoning is that changing materials, technologies, contexts, and collaborative practices allow one work to belong to several artistic directions.

This is a Class 9 Art Education question. Chapter: Introduction to Art. Topic: Types of art.